KINE 2049 Lecture Notes - The Literary Digest, Control Variable, Dependent And Independent Variables

• School: York University
• Department: Kinesiology & Health Science
• Course: KINE 2049
• Professor: Merv Mosher

Document Summary

Identify the sample group to avoid any misrepresentation of population (biased: determine the sample size. Utilized when the ratio is relevant to study: cluster sample selecting samples with unknown characteristics, and when selecting whole samples are impossible, explain the difference between an independent variable, a dependent variable, and a control variable. Confounding variables can occur without the knowledge or researchers, and may happen so discreetly. A valid report must control any possible confounding variables or at least attempt to identify any variables, failing to do so results in criticism of method. Kine2049 research methods: differentiate between primary variance, secondary variance, and error variance, primary variance (systematic) the wanted and consistent variation due in part to the independent variable. Maximum primary variance can be achieved by having independent variables change greatly but linearly so correlation can be seen: secondary variance (extraneous) the unwanted and consistent variation in the measurement.